1

HAIER

COLOR TELEVISION & DVD

SERVICE MANUAL

PART # TV-8888-40

HAIER AMERICA TRADING, LLC www.haieramerica.com

SERVICE MANUAL

14” TV+DVD COMBO

CHASSIS : PHILIPS UOC TDA9377 + DS-C005 DOCUMENT : TDC1314S SERVICE MANUAL DATE : 7/20/2004

This manual is the latest at the time of print, and does not include the modification which may be made after the printing, by the constant improvement of product.

.

2

CONTENTS 1. Safety precautions……………………………………………………………..……………3

2. TV block diagram……………………………………………………………………..…….4

3. Replacement of memory IC………………………………………………………….……5

4. Service adjustment……………………………………………………………..…………...5

5. ICs functional description…………………………………………………………………8

6. Test point waveform………………………………………………………………………10

7. All ICs voltages……………………………..……………………………………………….10

8. Purity / convergence adjustment………………………………………………………11

9. DVD maintenance…………………………………………………………………………13

10. List of Parts ………………………………………………………………………….…….14

11. Circuit diagram………………………………………………………………………Attached

12. Exploded view…………………………………………………………………Attached

.

3

1. SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many

circuits and components especially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the products should

not be made. Any design alterations or additions will void the manufacturer’s warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of Service manual. Electrical components having such features are identified by shading on the schematics and by ( ！ ) on the parts list in Service manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the parts list of Service manual may cause shock, fire, or other hazards

4. Don’t short between the LIVE side ground and

ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing. Some model’s power circuit is partly different in the GND. The difference of the GND is shown by the LIVE: ( ) side GND, ISOLATED (NEUTRAL): ( ) side GND and EARTH: ( ) side GND. Don’t short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure with a measuring apparatus (oscilloscope etc.) the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time. If above note will not be kept, a fuse or any parts will be broken.

5. If any repair has been made to the chassis, it is

recommended that the B1 setting should be checked or adjusted (See ADJUSTMENT OF B1 POWER SUPPLY).

6. The high voltage applied to the picture tube must conform to

that specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube must be the exact replacements or alternatives approved by the manufacturer of the complete product.

7. Do not check high voltage by drawing an arc. Use a high

voltage meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button.

8. When service is required, observe the original lead dress.

Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the manufacturer’s replacement components.

9. Isolation Check (Safety for Electrical Shock Hazard) After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal cabinet, screw heads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

10. The surface of the TV screen is coated with a thin film which can easily be damaged. Be very careful with it when handle the TV. Should the TV screen become soiled, wipe it with a soft dry cloth. Never rub it forcefully. Never use any cleaner or detergent on it.

(1) Dielectric Strength Test

The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 3000V AC (r.m.s.) for a period of one second. (…Withstand a voltage of 1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a period of one second.) This method of test requires test equipment not generally found in the service trade.

(2) Leakage Current Check Plug the AC line cord directly into the AC outlet (do not use line isolation transformers during this check). Using a “Leakage Current Tester”, measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC (r.m.s.). Alternate Check Method Plug the AC line cord directly into the AC outlet ( do not use a line isolation transformer during this check.). Use an AC voltmeter having 1000 ohms per volt or more sensitivity in the following manner. Connect a 1500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground (water pipe, etc.). Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.)

.

4

2. Block diagram TDA9377 PS/N2 series with mono intercarrier sound demodulator

5

3. REPLACEMENT OF MEMORY IC 1. MEMORY IC.

This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection circuits.

2. PROCEDURE FOR REPLACING MEMORY IC (1) Power off

Switch the power off and unplug the power cord from AC outlet. (2) Replace IC

Be sure to use memory IC written with the initial data values. (3) Power On

Plug the power cord into the AC outlet and switch the power on. (4) Check and set SYSTEM default value:

1) Press “MUTE” “CALL” “-\--“ “CALL” “MUTE” buttons in sequence to enter into factory status.

2) If the memory IC haven’t been written with the initial data, press [Program+] / [Program-] to select item INIT and press [VOLUME+] / [VOLUME-] to start initialize memory IC.

3) Check the setting value of the SYSTEM default value of Table below. If the value is different, select items by [Program+] / [Program-] keys and set value by [VOLUME+] / [VOLUME-] keys.

4) Press “EXIT” button to return to the normal screen.

4. SERVICE ADJUSTMENT Specific operation: use remote controller Press “MUTE” “CALL” “-\--“ “CALL” “MUTE” buttons in sequence to enter into factory mode. Press [Program+] / [Program-] to select items and press [VOLUME+] / [VOLUME-] key, to make data adjustment of corresponding factory menus. Press “EXIT” key to exit factory mode. Focus adjustment

1. Receive a crosshatch signal. 2. While watching the screen, adjust the FOCUS VR on the FBT to make the vertical and horizontal lines as

fine and sharp as possible. Geometrical adjustment Receive PAL standard complete pattern signal.

Adjustment steps： a) Adjust VSL, to the centre horizontal line just appears from half bottom shadow. b) Adjust VAM, to get 92% of vertical picture contents would be displayed on CRT. c) Adjust VSH, the centre horizontal line corresponds to CRT vertical centre. d) Adjust SCL, to the linearity of P card field is in proper condition. e) Adjust HSH, to get the picture horizontal centre correspond to CRT horizontal centre.

Receive NTSC signal and repeat above adjustment. AGC Adjustment

Receive 60dBµ (1mV) VH colour bar pattern signal. Select TOP item.

Adjust value, to noise reduce gradually and just disappeared point. CRT cut off and white balance adjustment

a) CRT cut off adjustment 1. Select item VG2B, then adjust value to 32. 2. PRESS “0” key, when the screen shows”VG2” adjust the SCREEN control on Fly back transformer to

make the screen show alternating flashing characters of “INSIDE HIGH INSIDE LOW”. b) White balance adjustment

1. Receive a Black and White pattern. 2. Adjust WRP, WRG, WRB items to get colour temperature 9300K ±3 JND.

6

Adjustable Items Direct access key Items Description Preset Remark “1” 5/6HSH Horizontal shift ON A “2” 5/6VSL Vertical slop 21 A 5/6VAM Vertical amplitude 45 A 5/6SCL S-correction 20 A 5/6VSH Vertical shift 38 A 5/6VOF OSD Vertical offset 38 A HOF* OSD Horizontal offset 20 A “3” RED Black level offset R 32 A GRN Black level offset G 32 A WPR White point R 31 A WPG White point G 31 A WPB White point B 31 A “4” TOP AGC Take-over point 27 A VOL Volume 36 9860 Sub-volume of TDA9860/59 59 HDOL Cathode drive level 5 AGC IF AGC speed 1 VG2B VG2 Brightness 32 IFO 31 “5” Picture preset 1 0CON Listen: Contrast 0 A 0BRI Listen: Brightness 0 A 0COL Listen: Colour 50 A 0SHP Listen: Sharpness 50 A 1CON Soft: Contrast 45 A 1BRI Soft: Brightness 45 A 1COL Soft: Colour 50 A 1SHP Soft: Sharpness 50 A “6” Picture preset 2 2CON Standard: Contrast 70 A 2BRI Standard: Brightness 50 A 2COL Standard: Colour 50 A 2SHP Standard: Sharpness 60 A 3CON Dynamic: Contrast 85 A 3BRI Dynamic: Brightness 60 A 3COL Dynamic: Colour 60 A 3SHP Dynamic: Sharpness 80 A NOTE: THE ITEMS WITH REMARK “A” IS ADJUSTABLE DATA. Optional data 1. OP1 Bit Function Description Preset Remark Bit 7 RESERVE 0 EA Bit 6 AV2 1=Enable 1 EA Bit 5 Half Tone Translucence OSD manual 1=Enable 1 EA Bit 4 RGB 1=Enable (Can only be selected either RGB and DVD) 0 EA Bit 3 DVD 1=Enable 0 EA Bit 2 Comb filter 1=Enable 0 EA Bit 1 SVHS 1=Enable 0 EA Bit 0 AV1 1=Enable 1 EA

7

2. OP2 Bit Function Description Preset Remark Bit 7 Ident sensitive PAL 1=21dBµV 0=26dBµV 0 EA Bit 6 TILT 1=Enable 0 EA Bit 5 OSO 1=Enable 1 EA Bit 4 FSL 1=Enable 0 EA Bit 3 RESERVE 1 EA Bit 2 FMWS 1=Enable 1 EA Bit 1 RESERVE 1 EA Bit 0 AVL 1=Enable 1 EA

3. OP3 Bit Function Description Preset Remark Bit 7 TDA9377 1=TDA9377 0=TDA9378 1 EA Bit 6 16:9 1=Enable 0 EA Bit 5 RESERVE 0 EA Bit 4 RESERVE 0 EA Bit 3 YPbPr 1=YPbPr 0=Yuv 1 EA Bit 2 Blue/Black back 1=Blue Back 0=Black Back 1 EA Bit 1 RESERVE 0 EA Bit 0 Woofer 1=Enable 0 EA

4. OP4 Bit Function Description Preset Remark Bit 7 RESERVE 0 EA Bit 6 VCHIP 1=Enable 1 EA Bit 5 RESERVE 0 EA Bit 4 Soft program change 1=Enable 0 EA Bit 3 RESERVE 0 EA Bit 2 RESERVE 0 EA Bit 1 RESERVE 0 EA Bit 0 RESERVE 0 EA

5. OP5 Bit Function Description Preset Remark Bit 7 AUTO CHARACTER 1= Enable 1 EA Bit 6 FREQ 1= Enable 0 EA Bit 5 AV AUDIO TRACK 1=Enable 0 EA Bit 4 PAL 1=Enable 0 EA Bit 3 Portuguese 1= Enable 1 EA Bit 2 Spanish 1= Enable 1 EA Bit 1 French 1=Enable With DVD select 1 1 EA Bit 0 English 1=Enable 1 EA 6. OP6

Bit Function Description Preset Remark Bit 7 RESERVE 1=Enable 0 EA Bit 6 RESERVE 1=Enable 0 EA Bit 5 SOFT CHANGE AV 1=Enable 0 EA Bit 4 LISTEN 1=Enable 1 EA Bit 3 INNER DVD 1=Enable 1 EA Bit 2 ZOOM 1=Enable 0 EA Bit 1 9860 1=Enable 0 EA Bit 0 MEMU STYLE 1 EA

Note：Don’t adjust any OPTION items, please inform the engineer about any change.

8

5. ICs functional description 1. N501 UOC TDA9377

SYMBOL PIN DESCRIPTION STAND BY output. 1 In STAND BY mode, low level (Power OFF).

For Power ON this pin will be high. SCL 2 I2C-bus clock line SDA 3 I2C-bus data line TUNING 4 tuning Voltage (Vt) PWM output KEY 5 Control keys input SYSTEM 6 TV system control VOL 7 Sound Volume control PWM output MUTE 8 Sound mute output VSSC/P 9 Digit ground for µ-controller core and periphery CTL 10 DVD power control STANDBY 11 STANDBY control VSSA 12 Analog ground of digital ground of TV-processor SECPLL 13 Internally connected VP2 14 2nd supply voltage TV-processor(+8V) DECDIG 15 decoupling digital supply of TV-processor PH2LF 16 Phase-2 filter PH1LF 17 Phase-1 filter GND3 18 Ground 3 for TV-processor DECBG 19 Band gap decoupling AVL/EWD 20 Automatic volume levelling VDRB 21 Vertical drive B output VDRA 22 Vertical drive A output IFIN1 23 IF input 1 IFIN2 24 IF input 2 IREF 25 Reference current input VSC 26 Vertical sawtooth capacitor TUNER AGC 27 Tuner AGC output AUDEEM/SIFIN1 *1 28 Audio deemphasize or SIF input DECSDEM/SIFIN2 29 Decoupling sound demodulator GND2 30 Ground 2 for TV processor SNDPLL/SIFAGC *1 31 Narrow band PLL filter AVL 32 Automatic Volume Levelling HOUT 33 Horizontal output FBISO 34 Flyback input/sandcastle output AUDEXT 35 External audio output EHTO 36 EHT/over voltage protection input PLL IF 37 IF-PLL loop filter IFVO/SVO 38 IF video output / selected CVBS output VP1 39 supply voltage TV processor CVBS INT 40 internal CVBS input GND1 41 ground for TV processor CVBS/Y 42 CVBS/SVHS(Y) input CHROMA 43 SVHS (C) input AUDOUT 44 Audio output INSSW2 45 YUV insertion input R2/VIN 46 R input / V (R-Y) input / PR input G2/YIN 47 G input / Y input B2/UIN 48 B input / U (B-Y) input / PB input BCLIN 49 Beam current limiter input BLKIN 50 Black current input RO 51 Red output GO 52 Green output BO 53 Blue output VDDA 54 Analog supply of Closed Caption decoder and digital supply of TV-processor (3.3 V) VPE 55 Ground VDDC 56 Digital supply to core (3.3 V) OSCGND 57 Oscillator ground supply XTALIN 58 Crystal oscillator input XTALOUT 59 Crystal oscillator output

9

RESET 60 Ground VDDP 61 Digital supply to periphery (+3.3 V) P1.0/INT1 62 AV1 / AV2 mode Output. P1.1/T0 63 AV /S-VHS mode Output. P1.2/INT0 64 Remote control signal input.

Note

Pin TV SVHS AV1 AV2 62 1 0 0 1 63 1 1 0 0

2. N902 24C08/PCF8598 PIN Function 1 GND 2 GND 3 Upper resistance 4 GND 5 SDA data wire 6 SCL clock wire 7 GND 8 +5V Power

3. N601: Sound power amplify (AN7522N) Symbol PIN Function Symbol PIN Function Vcc 1 Power supply GND 7 ground Out 1 (+) 2 Ch 1 output (+) In 2 8 Ch 2 input GND(out 1) 3 Ch 1Ground VOL 9 Volume Control Out 1 (-) 4 Ch 1 output (-) Out 2 (-) 10 Ch 2 output (-) Standby 5 Mute input GND(out 2) 11 Ch 2 Ground In 1 6 Ch 1 input Out 2 (+) 12 Ch 2 output (+)

4. N301: Vertical output (TDA8357A) Symbol PIN Function Symbol PIN Function INV IN 1 Input PUMP UP 6 Pump up power INV IN 2 Input V OUT 7 Vertical output Vcc 3 Pump up power V PRO 8 Vertical protection V OUT 4 Vertical output V FEEDBACK 9 Vertical feedback GND 5 Ground

5. U101：Tuner PIN Function PIN Function

1 AGC 7 +5V 2 vacant 8 vacant 3 Gnd 9 Vt 33V 4 SCL 10 Gnd 5 SDA 11 IF Out 6 +5V

10

6. Test point Waveforms 7. IC voltages TDA9377

PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 V 0 3.8 3.6 3.3 3.5 4.4 5.1 1.8 0 0.18 0.17 0 2.3 8 5 3 PIN 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 V 4 0 4 0.5 0.7 0.8 1.9 1.9 3.9 3.8 1.6 3.2 2.3 0 2.3 0.2PIN 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 V 0.5 0.3 0 1.7 2.4 3.4 8 3.9 0 3.3 0 3.6 1.4 2.5 2.5 2.5PIN 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 V 1.9 5.0 2.4 2.4 2.4 3.1 0 3.2 0 1.8 1.7 0 3.2 5.1 3.3 5

TDA8357 PIN 1 2 3 4 5 6 7 8 9 V 0.8 0.7 16 6.9 0 43 7.2 0.3 7.2

AN 7522N PIN 1 2 3 4 5 6 7 8 9 10 11 12 V 10 4.4 0 4.4 2.75 1.4 0 1.4 0.35 4.4 0 4.4

24C08/PCF8598

PIN 1 2 3 4 5 6 7 8 V 0 0 5.1 0 3.2 0 0 5.1

5Vpp 0.9Vpp

1.3Vpp

H H

1Vpp

V

CRT KB CRT KG CRT KR

95Vpp

95Vpp

95Vpp

H H H

TDA9377 PIN53

2.5Vpp 2.5Vpp 3.8Vpp

H H H

TDA9377 PIN52

TDA9377 PIN51

TDA9377 PIN33

TDA9377 PIN34

0.8Vpp

V

TDA9377 PIN21

TDA9377 PIN22

TDA9377 PIN59

1.2Vpp

2.6Vpp

H H

TDA9377 PIN40 TDA9377 PIN38

11

8. PURITY / CONVERGENCE ADJUSTMENT PURITY ADJUSTMENT 1. Demagnetize CRT with the demagnetizer. 2. Loosen the retainer screw of the deflection yoke. 3. Remove the wedges. 4. Input a green raster signal from the signal generator,

and turn the screen to green raster. 5. Move the deflection yoke backward. 6. Bring the long lug of the purity magnets on the short

lug and position them horizontally. (Fig2) 7. Adjust the gap between two lugs so that the GREEN

RASTER will come into the centre of the screen. (Fig. 3)

8. Move the deflection yoke forward, and fix the position

of the deflection yoke so that the whole screen will become green.

9. Insert the wedge to the top side of the deflection yoke

so that it will not move. 10. Input a crosshatch signal. 11. Verify that the screen is horizontal. 12. Input red and blue raster signals, and make sure that

purity is properly adjusted.

CRT

WEDGE DEFLECTION YOKE

P

4 6

P: PURITY MAGNET 4: 4-POLES (convergence magnets) 6: 6-POLES (convergence magnets)

P/C MAGNETS

Fig. 1

PURITY MAGNETS

Long lug Short lug

Bring the long lug over the short lug andposition them horizontally.

Fig. 2

(FRONT VIEW)

GREEN RASTER

CENTER Fig. 3

12

STATIC CONVERGENCE ADJUSTMENT 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets overlap the red

and blue lines in the center of the screen (Fig. 1) and turn them to magenta (red/blue).

3. Using 6-pole convergence magnets overlap the

magenta (red/blue) and green lines in the center of the screen and turn them to white.

4. Repeat 2 and 3 above, and make the best

convergence. DYNAMIC CONVERGENCE ADJUSTMENT 1. Move the deflection yoke up and down and overlap

lines in the periphery. (Fig. 2) 2. Move the deflection yoke left to right and overlap the

lines in the periphery. (Fig. 3) 3. Repeat 1 and 2 above, and make the best

convergence. After adjustment, fix the wedge at the original position. Fasten the retainer screw of the deflection yoke. Fix the 6 magnets with glue.

(FRONT VIEW)

Fig. 1

(FRONT VIEW) RED GREEN BLUE BLUE

RED

GREEN GREEN

RED BLUE

BLUE GREEN RED

Fig.2

(FRONT VIEW) RED GREEN BLUE BLUE GREEN RED

RED

GREEN

BLUE

BLUE

GREEN RED

Fig. 3

13

9. DVD Part: Introduction of MTK1379 maintenance 1. Under normal power supply conditions, the maintenance plan for MT1379 mono-chip is: first the reset

circuit resets the MT1379, after the crystal oscillator circuit gave the clock signal to MT1379, MT1379 will start the initialization check for Flash、E2PROM、SDRAM, after everything is checked to be normal, it will start initialization check for 7Audio DAC, MT1336 and motor Driver.

2. If the all the a.m. parts are good, then MT1379 will send signal to motor Driver to drive the servo system，pick up then to generate DVD light for collection, tracing the main shaft to check if there is any disc, and confirm if it is CD format or DVD format disc. If the disc is in DVD format, the system will read the data from the disc directly; if it is in CD format MT1336 will drive the CD laser to send out CD light and read the data, the data then will be amplified through MT1336 and sent to MT1379 for data processing, released by MPEG and resolved into video data and audio data, then they will be returned to analog signals through VIDEO DAC、AUDIO DAC.

Decoder section 3. There is power supply, clock and reset, but the system does not work.

1） Check if all the address wires required for FLASH are exist, and if they are in normal status, especially check if the A0~A15 of FLASH have normal signals, if there aren’t, then inspect MT1379 to see if there is faulty soldering. If there are normal signals at A0~A15, check if the address data signal of MT1379 and SDRAM is normal. If it is normal, then check the signal at A16~A19 of MT1379; if there are also signals, then check the 8 video data wires; it there is no signal, then check the corresponding pins of MT1397 to see if there is any short circuit, break or faulty soldering.

2） If all the a.m. conditions are good, but there is still no video signal output, then the filter circuit after MT1379 shall be checked.

4. System in normal operation, but the audio has no sound. 1） Check if all the signals of DATA, MCLK, BCLK, LRCK and reset required by the Audio DAC are

exist, if there is signal missing, then check the signal line between MT1379 and Audio DAC. If the line is connected properly, but there is no signal, then check if there is any welding problem at the corresponding pins of MT1379. If it is still OK, it is probably the problem on MT1379 itself.

2） All the required signals are exist, while there is no audio output. Then you need to check the lower passing amplifying circuit and the MUTE circuit at the back of Audio DAC. Also check if there is any power supply to the Audio DAC.

3） Check if the power supply voltage required for playing is at normal level.

Servo Section 5. After the LOGO of the machine shows normally, there is no OSD display. This problem mainly is caused

by the abnormality between servo and MPEG, possible problems may be: 1） T1336 and its surrounding circuits have problems. 2) Servo part of MT1379 has problems.

6. OSD display is normal，while there is no action of servo part（feeding motor does not work, main shaft does no turn, possible fault status are:

1) The corresponding signals giving by MT1379 to DMSO、FMSO are missing, the reason may be the problem of MT1379 or the communication between MT1379 and motor Driver.

2) Not output from Motor Driver, the reason may be the problem on motor Driver or its corresponding circuit.

7. Servo part in good status, while there is no pick up action（no light, no focus） 1） No light, check the power supply（power supply for pick up）, or the light producing driving circuit to see

if they are in normal status. 2） No focus, check MT1379 to see if there is signal output from FOSO、TRSO.

Secondly, check motor driver to see if there is F+、F-、T+、T-signal output. Thirdly, check the external corresponding circuit of the motor driver to see if there is any problem. 8. All the servo part has action, while it cannot read out the disc

1） Check MT1336 if there is RF net picture output, if there isn’t, then it must be the problem of MT1336 and external surrounding circuits, it there is output, then it might the problem of MT1369 and its surrounding circuits.

2） There is RF signal，but not in normal status，then check MT1336 and surrounding circuits. 3 ）Everything is normal, but the disc cannot be read out, check MT1369 and its surrounding circuit

日期日期签 名 签 名 签 名数量数量数量更改单号 更改单号 更改单号拟 制审 核

标准化 等级标记 第 张 共 张

： ： ：

更改标记

更改标记

更改标记

批 准制图 描图 幅面

日期签 名

旧底图总号

底图总号

(3)格式

DTA-1490电路原理图

W90DL-206---Q

W90DL-206--Q

50V-4.7µFC233

63V-330PFC232

1/6W-3.9KR229

63V-1000pFC231

63V-0.022µFC228

50V-104C227

16V-10µFC230

1/6W-39KR228

63V-0.01µF

C226

63V-0.01µFC225

104C223

472C221

15KR226

222C218

224C217

224

C216

104C220

V- P+ TV/AVP-V+ MENU

RB01470

RB02620

RB031K

RB051.8K

RB041.2K

C240

33

C23933X201

12M

OU

T

GN

D

VC

C

HS0038ARM201

3.3KR266

100

R210100

R209

AV1/AV2

R208

1/6W-100

A5-3.3V

B-OUT

G-OUT

IN4148VD201

R-OUT

CUT-OFF

50V-1uFC247

Z201XT6.0M

L210

LGA0203-5R6

50V-1uFC253

IN4148VD202

63V-150PFC249

BL

C-SVHS

V-OUT

SYSTEM

H-DRI

A7-8V

H-SYNC ABL

A5-3.3V

SYSTEM

EW-D

RI

A7-8V

VD

-N

VD

-P

HTRYG9208LD901

180V

HEATER

CUT-OFF

B-OUT

G-OUT

3

21

CN503

H-DRI C402500V-560pF

T401AA26

C4192kV-681pF

C413400V-472

C401100V-103

VD401IN4004

B4-16.5V

A2-125V

H-SYNC

EW-DRI

VD-N

VD-P

VD402IN4004

C422104

VD404T1R5GU41

C403500V-470pF

C303

35V-100uF

DZ301MTZJ22A

VD406TR5GU41

C416400V-364

DZ402MTZJ5.1B

VD403TC2406

C417500V-470pF

C418100V 10u

HEATERB1-185V VIDEO GT404

C414104

VD405TTVR10G

ABL

C411250V-22uF

B3-18.5V

HEATER

H-OUT

V4012SD2499

C40425V-470uF

C802AMKT61-275V-104

DV801TVR14561

L801

SW01KDC-A10

P801MZ73-14RM270V

。

。

。

L803

LB3.5*6

C8051kV-1000pF

N801

VFB

VCC

4

3 5

1

2SYNC

C80463V-3900PF VD809

IN4148

VD810TERB4304

VD804TB1206

C80363V-0.047µF

C823332

C801150uF/400V

T801

4

8

9

10

12

14

15

16

17

1

PC801PC817C

C8072kV-561pF

C808160V-100UFVD802

T1R5GU41-12.5-M

A1-33V

A2-130V

C810500V-560pF

VD805T1R5GU41

A3-15.7V

VD803T1R5GU41

C845500V-560pF

C81463V-104

DZ803KA431

A4-10.4V

。

。

C80250v-47u

BCK-07-DE7

R8031/2W-390

STANDBY

R8481/6W-15K

47R943

C219100u

C2221u

C2242.2u

1

2

3

4

5

6

7

8

16

9

10

11

12

13

14

15

R746

3.3K

16

9

10

11

12

R747

3.3K

13

14

15

A3-5V

A6-

5V

C20956

56C208

A6-5VA6-5V

C2593.3K

10KR279

.

63V-0.1µFC242

16V-100µFC241

16V-22µFC236

63V-0.1µFC237

63V-1000pFC234 100U

C922

16V-100µFC255 63V-0.022µF

C254

63V-0.1µFC256

63V-0.1µFC248

1N4004

L209

16V-47µFC252

1/6W-47R250

63V-0.01µF

C207

1/6W-22KR274

A5-

3.3V

A7-

8V

ST-BY

TJC-5

CN502TJC-3

GND

CNB01TJC3-2Y

CNB02TJC3-2Y

CN802TJC1-2Y

DEGUSS

CN801TJC1-2Y

CN401TJC-4

160V-1uFC415

16V-10µFC250

A3-15.8VA6-5V

1/6W-4.7KR241

1/6W-1KR242

16V-47µFC257

3.3KR278

3.3KR222

3.3KR220

3.3KR212

3.3KR211

3.3KR215

47R216

10uHL202

1KR840

1KR841

1/6W-100R230

1/6W-100R236

1/6W-100R235

1/6W-100R237

1/6W-33KR273

1/6W-1KR238

1/6W-6.8KR248

1/6W-20KR249

1/6W-470R256

1/6W-75R265

1/6W-390R244

1/6W-270KR275

1/6W-100KR259

1/6W-27KR276

1/6W-100R245

1/6W-200R263

1/6W-8.2KR246

1/6W-3.3KR247

1/6W-430R255

1/6W-100R252

1/6W-200R251

1/6W-47R257

1/6W-1Kw265

1/6W-75R258*

1/6W-75R718

1W-3.9KR407

2W-1KR414

2W-7.5K

R413

1/2W-0.22R409

1/2W-33R408

1/2W-0.39R407

1/2W-270R403

2W-18KR810

1/2W-1KR819

1/2W-1.5KR818

1/2W-39KR809

1/2W-123KR816

1/2W-2.49KR817

1/6W-15KR847

1/6W-10KR849

1/6W-10KR214

1/6W-6.2KR213

1/2W-3.3MR806

1/2W-3.3MR807

1/2W-3.3MRx801

33KR801

33KR802

1/2W-470KR822

1/2W-470KR823

MF72-2-5Ω±NRP801

1/2W-600R805

250V/3.15AF801

LGA0203-100L208

LGA0203-100L207

LGA0203-100L206

LX034L401

1722-400uHLW

KSC815V804

KSC815V206

KSC815V208

KSC815V212

KSC2331-YV402

21P-R

21P-G21P-B

A7-8V

STANDBY

SCL

SDA

HEATERB1-180V

1N4148VD815

AV2-VINOUT

VIDEO

Y Cb Cr

10uC001

10uC002

10uC003

CN001TJC3-4Y

V-OUTA0LA0R

120R001

120R002

120R003

AV1-VINAV1-ALAV1-AR

Y C

CNS01

CNT01TJC3-10A

CN703CN704TJC-2A

CN200

102CT01

75RS01

Y-SVHSC-SVHS AV1-V AV1-ARAV1-AL

CNS0275RS03

100RT02

1

2

MUTE

1

45

8

1

23

4

185v

16.5

A6-5V

SDA SCL

N702 HEF4053

V1

V2

H2

H1

1N4148

VD816

MTZJ4.7BDZ205

WpNCA2

VSS

VDDPTCSCLSDA

N20224C08

MUTE

CN602

CN601

B+SCL SDAAGC9

GNDBT11

IF10831 54 6 72

TU101TEDE9-276A

16V-10µFC107

104C202 C201

10u

KA33VDZ201

A1-33V

D2901CSF101

MTZJ9.1BDZ101

16V-47µF

C108

2SC2216V101

1/6W-10R104

1/6W-3.3KR105

1/6W-470R106

25V-220µFC102

MTZJ5.1BDZ102

63V-0.1µFC101

1/6W-68KR261

1N4148VD217

1/6W-9.1KR260

1/6W-1KR227

1/6W-9.1KR262

B4-12V

C214104

SYSTEM

1W-33R110

LGA0203-100L102

SDASCL

1/6W-47R103

3.3kR845

KSC815V802

MTZJ3.9BDZ807

1/6W-100KR850A

1N4148

VD818

B4-12V

SPEAKER

SPEAKER

INPU

T

INPU

T2

VC

C3

OU

T4

GN

D5

VFB

6

OU

T7

VO

8

VI

9

TDA8357J

N301

1/2W-1R415

100V-33uFC304

LGA0305-10uH

L306

MTZJ15C

DZ303

63V-0.047µFC306

1/2W-1.5R308

1/2W-10R302

1/6W-12KR311

1/6W-270KR314

1/6W-1.3KR313

1/6W-1.2KR312

1/2W-1.3R305

2W 0.68R306

1/6W-100K

R303

2W 390 R307

EWD

DEC.BG

PH1.LF

GND3

PH2.LF

DECD/G

SEC.PLL

VSSA

CTL

BAND

VSSC/P

VOL

MUTE

SYSTEM

KEY5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

47

48

49

50

51

52

53

54

55

56

57

58

59

60

VP2

46

23

24

25

26

27

28

29

30

31

32

45

33

34

39

40

41

42

35

36

37

38

43

44

H.OUT

F.B.L.SO

AUO.EXT

EHTO

PLL.IF

IF.VO/SVO

VP1

CVPS.INT

GND1

CVBS/Y

CHROMA

AUD.OUTV.DRB

V.BRA

IF.IN1

IF.IN2

I.REF

V.S.C.

AGC

AV.DEEM

DECS.DEM

GND2

SND.PLL

AVL

RESET

XTAL.OUT

XTAL.IN

OSC.GND

VDD.C

VPE

B.OUT

G.OUT

INSS.W2(BL)

R.OUT

BLK.IN

BCL.IN

B2/U.IN

G2/Y.IN

R2/V.IN

VDD.A

VT

SDA

SCL

STANDBY1

2

3

4 61

62

63

64INT.REM

AV/SVHS

AV1/AV2

VDDP

TDA9370N201

0.18R815

1000uC610

A4-10.4V

VC

C1

OU

T22

GN

D3

OU

T24

MU

TE5

INPU

T6

GN

D7

INPU

T8

VO

L9

OU

T110

GN

D11

OU

T112

N601AN7522N

KSA539V622

KSC815V621

KSA539v620

1/6W-4.7KR623

1/6W-33KR621

1/6W-10KR620

W6101/6W-56K

C61250V-1uF

C60450V-1uF

C61163V-4700PF

C60363V-4700PF

POWER

VD6201N4148

A3-15.7V 1/6W-10KR622

C62150V-1µF

C62016V-100µF

1/2W-68

R416

ABL

16V-10µF

C246

1/6W-1K

R243V213

KSC815

1/6W-100KR277

R262*1/6W-4.7K

C7401UF

50V-1uFC725

220 bom板上没有， 表有R707

A1R

v04

v03

VOL

1/6W-5.6KΩ

R605

1/6W-5.6KΩR606

1/6W-5.6KΩR611

1/6W-5.6KΩR610

1/6W-220R704 1/6W-220

R703

50V-1uFC722

50V-1uFC727

A5V

A3-15.8

FO

SC

HV

TO CRT

TO C

RT

PC

B S

CR

EEN

& F

OC

US

8

9

6

7

1

4

5

3

10 11

B+

SC

FO

HV

46

BSC25-0283GT444

AV1/AV2

C81125V-2200µF

C84625V-1000µF

18

19

。

VD806

FFPF10U20STUC847

500V-560pF

C8481000UF

1

2

3

4

5

6

7

8

16

9

10

11

12

15

16

9

10

11

12

13

14

15

N703HEF4052

AV/SVHS

2

R7521/6W-10

CVBS/Y

CVBS/Y

75R715

50V-1uFC706

50V-1uFC705

1/6W-220R708

A1L

AV

2-L

AV

2-R

V03V04

63V-3300PFC229

DVD-5V

12

3 4

21/6W-10KR833

2

R830

1/6W-3.3K2

R8321/6W-10K

V807KSC815

DZ8311N4148

C85063V-224

C85363V-104

C85416V-100µF

12

3 4C849

63V-224C851

63V-104

C85216V-1000µF

12V 5VCN810

CN706 cn702

DVD-5V A3-15.8V

DV

D-A

L

DV

D-A

R

C Y

SL SR

78R12

78R05

N805

N804

R-OUT

2W-6.2ΩR821

1/6W-1.5KR861

1/6W-15KR862

1/6W-10KR860

2W-110ΩR820

MTZ5.1BDZ802

KSC815V806

2SB764(Y)V805

C81916V-100µF

C82916V-100µF

L7809CS

L209IN4004

A3-14.73V

B4-9V

A6-5V

POWER

N802A7-8V

MTZJ9.1BDZ101

C10816V-47µF

LCL-207

CN501

GT501 1P

GT502 1P

5

6

7

8

FO

SC

HV

C50810uF

CRTA34AGT13X53

1.8KR534

1.8KR524

1.8KR514

68R506

33KR527

2.8R505

47R501

47R502

47R503

C2688V531

BF423V503

C502330p 270

R536

16KR531

10KR512

SCREEN

C510102K/2KV

C2688V521

BF423v522

C503

470Pf 270R526

12kR521

390R523

C2688V511

BF423V512

C501470Pf 270

R516

18KR511

390R513VD504

1N4148

VD5051N4148

ZD501BZX79C8V2

R-OUT

B-OUT

G-OUT

G

220R522

B

BF422V513

220R512

BF422V523

BF423V533

220R532

C511

100Pf

R

C5094.7uf

10MR550

VD507TC2406------T

G1

KA5Q0765RTH-YDTU

VD814TRM11C

VD811TRM11C

VD812

TRM11C

1/4W-2.7KR850

C82125V-220µF

C4102kV-681pF

LB3.5*5L402

125v

1/2W-120K

R420

C4091.5KV-622

NC

LGA0203-1µHL101

63V-1000pFC110

1/6W-2.2KΩR102

63V-104C422

63V-0.01µFC111

KA78R12

KA278R05

1/2W-1R824

1/6W-12Kw333

50V-1uFC750

1/6W-100w236

1/6W-100w235

39KR281

39KR280

50V-2.2µFC258